Erpnextswiss only for bank import


we use ERPnext v12 on our own Server. At the moment we use it only for invoicing.
We set it up to use it with german tax. Now we want to import bank account from our bank.
I see there is erpnextswiss app with these features. Can i use only bank import function from these app? Or destroy the app my actual settings we use for invoicing?

Greetings from Germany.